18868707

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1$

素因数の和:223

約数の個数: 56

約数和(自身を含む): 33419568

約数和(自身を除く): 14550861

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 181, 243, 297, 351, 429, 543, 729, 891, 1053, 1287, 1629, 1991, 2353, 2673, 3159, 3861, 4887, 5973, 7059, 8019, 9477, 11583, 14661, 17919, 21177, 25883, 34749, 43983, 53757, 63531, 77649, 104247, 131949, 161271, 190593, 232947, 483813, 571779, 698841, 1451439, 1715337, 2096523, 6289569, 18868707]

約数ペア:

[(1, 18868707), (3, 6289569), (9, 2096523), (11, 1715337), (13, 1451439), (27, 698841), (33, 571779), (39, 483813), (81, 232947), (99, 190593), (117, 161271), (143, 131949), (181, 104247), (243, 77649), (297, 63531), (351, 53757), (429, 43983), (543, 34749), (729, 25883), (891, 21177), (1053, 17919), (1287, 14661), (1629, 11583), (1991, 9477), (2353, 8019), (2673, 7059), (3159, 5973), (3861, 4887)]